Evidence map›Paper›PMID 32631379›Full record

ArticleOrphanet journal of rare diseases2020

Sickle cell disease in Sri Lanka: clinical and molecular basis and the unanswered questions about disease severity.

Thamal Darshana, Dayananda Bandara, Upul Nawarathne, Udaya de Silva, Yasinta Costa, Kalavitigoda Pushpakumara, Sumithra Pathirage, Seuwandi Basnayake, Chamila Epa, Pradeepa Dilrukshi and 9 more

Abstract read
In one paragraph

Article in Orphanet journal of rare diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. TheJournal of pediatric genetics · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

19 authors.

Thamal DarshanaDepartment of Medical Laboratory Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka. darshana@sjp.ac.lk.ORCID 0000-0003-3156-8734
Dayananda BandaraNational Thalassaemia Centre, Teaching Hospital, Kurunegala, Sri Lanka.
Upul NawarathneDepartment of Pediatrics, Teaching Hospital, Kurunegala, Sri Lanka.
Udaya de SilvaThalassaemia Unit, Teaching Hospital, Anuradhapura, Sri Lanka.
Yasinta CostaDepartment of Haematology, Teaching Hospital, Ragama, Sri Lanka.
Kalavitigoda PushpakumaraDepartment of Pediatrics, District General Hospital, Matara, Sri Lanka.
Sumithra PathirageDepartment of Pediatrics, District General Hospital, Hambantota, Sri Lanka.
Seuwandi BasnayakeDepartment of Haematology, District General Hospital, Monaragala, Sri Lanka.
Chamila EpaDepartment of Haematology, Teaching Hospital, Batticaloa, Sri Lanka.
Pradeepa DilrukshiDepartment of Haematology, District General Hospital, Ampara, Sri Lanka.
Maheshaka WijayawardenaDepartment of Pediatrics, District General Hospital, Ampara, Sri Lanka.
Angela A AnthonyDepartment of Clinical Sciences, Eastern University, Batticaloa, Sri Lanka.
Rexan RodrigoThalassaemia Adult and Adolescent Care Centre, Teaching Hospital, Ragama, Sri Lanka.
Aresha ManamperiMolecular Medicine Unit, University of Kelaniya, Ragama, Sri Lanka.
Frances SmithMolecular Pathology Department, Viapath at King's College Hospital, London, UK.
Angela AllenWeatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.
Stephan MenzelSchool of Cancer and Pharmaceutical Sciences, The Rayne Institute, King's College London, London, UK.
David ReesDepartment of Haematological Medicine, King's College Hospital, London, UK.
Anuja PremawardhenaDepartment of Medicine, University of Kelaniya, Ragama, Sri Lanka.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThough case reports and limited case series of Sickle cell disease in Sri Lanka have been reported previously, no attempt has been made hitherto to undertake a comprehensive genotypic-phenotypic analysis of this "rare" group of patients.

resultsAll accessible Sickle cell disease patients, totaling 60, including, 51 Sickle β-thalassaemia and 9 homozygous sickle patients were enrolled from seven thalassaemia treatment centres between December 2016-March 2019. The majority of patients were of Sinhalese ethnicity (n = 52, 86.67%). Geographically, two prominent clusters were identified and the distribution of Sickle haemoglobin in the island contrasted markedly with the other haemoglobinopathies. 3/ 9 homozygous sickle patients and 3/ 51 Sickle β-thalassaemia patients were receiving regular transfusion. Joint pain was the commonest clinical symptom among all sickle cell disease patients (n = 39, 65.0%). Dactylitis was significantly more common in homozygous sickle patients compared with the Sickle β-thalassaemia groups (p 0.027). Two genetic backgrounds sickle mutation were identified namely, Arab Indian and Benin. Among the regulators of Foetal hemoglobin in Sickle patients of the present study rs1427407 G > T seemed to be the most prominent modifier, with a significant association with Foetal haemoglobin levels (p 0.04).

conclusionsOverall, the clinical course of the Asian version of Sickle cell disease in Sri Lanka appears to be milder than that described in India.

Indexed as

Anemia, Sickle Cellbeta-ThalassemiaHumansIndiaSeverity of Illness IndexSri LankaClinicalGeneticSeveritySickle cellSri Lanka

Identifiers

PMID32631379
PMCPMC7339547

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.